Ultrafast all-optical polarization switching in Bragg-spaced quantum wells at 80K

W. J. Johnston; J. P. Prineas; Arthur L. Smirl

doi:10.1063/1.2433994

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Ultrafast all-optical polarization switching in Bragg-spaced quantum wells at 80K

Journal article

Peer reviewed

Ultrafast all-optical polarization switching in Bragg-spaced quantum wells at 80K

W. J. Johnston, J. P. Prineas and Arthur L. Smirl

Journal of applied physics, Vol.101(4), p.46101

02/15/2007

DOI: 10.1063/1.2433994

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Abstract

A polarization switch is demonstrated in Bragg-spaced quantum wells at 80 K that exhibits a 0.6 THz optical bandwidth with a contrast ratio greater than 30 dB, a throughput of ∼4%, a switching fluence of 8 μJ cm2, and a pulse-width-limited picosecond response time. In this device, switching is achieved by using large spin-dependent nonlinearities induced by a circularly polarized control pulse to alter the polarization state of a linearly polarized signal pulse. © 2007 American Institute of Physics.

Details

Title: Subtitle: Ultrafast all-optical polarization switching in Bragg-spaced quantum wells at 80K
Creators: W. J. Johnston
J. P. Prineas
Arthur L. Smirl
Resource Type: Journal article
Publication Details: Journal of applied physics, Vol.101(4), p.46101
DOI: 10.1063/1.2433994
ISSN: 0021-8979
eISSN: 1089-7550
Language: English
Date published: 02/15/2007
Academic Unit: Physics and Astronomy
Record Identifier: 9984428777802771

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